GiD forum

Hi everyone
I need the root mean square of a pressure on a line graph, so I need to create a statistical graph.
1) there's no automatic way to compute that right? (for average, std, maximum we only need to go to Window->create statistical graph)
2) I thought to proceed in this way:
a)create result -> Result1: pressure Operator: * Result2: pressure New name=pressure^2 select all step box
b)create statistical graph -> all step statistical operation: average of: pressure^2

That should create the RMS....
My doubt is on create result, because Gid forces you to choose a time step for result1 and for result2 even if you select "all step box".
The question is: Is it only a bug ? Everything works fine in any case?

Hello,

Yes, you are right, this is the way to create the RMS.

Regarding the "Create result" window, yes, it's a bug, thank you for letting us know.
In any case, is working properly, just select the first step for both results and mark the "all steps" box.

just for someone that can read this post...the procedure above returns the TOTAL SQUARE SUM (the power2 of the RMS)

In next GiD 14.1.1d developer version we will add this 'Root mean square' to the list of default operators of the 'Create statistical scalar result' window.